Pound investors are ripping up their Brexit playbooks as the chance of a no-deal exit flare once again.
Sterling is the only major currency to fall against the dollar this week as U.K. Prime Minister Theresa May gambles on getting her plan over the line with just over a week to go before the exit. Option traders are betting on further losses and increased currency swings, while fund managers are seeking help from constitutional experts to assess the potential fallout.